Coin-controlled lock



April 9, 1929. D. c. MORGAN COIN CONTROLLED LOCK Filed Dec. 15, 1923 2Sheets-Sheet IN VEN TOR.

. L I M M %ZZ Z FIG-4- DON/9L0 C. MORE/7N April 9, 1929. c, MORGAN1,708,319

COIN CONTROLLED LOCK INVENTOR. DON/7L0 c. MORE/7N BY c fiav A TTORNEY.

Patented Apr. 9, 1929.

DONALD C. MORGAN, OF INDIANAPOLIS, INDIANA, ASSIGNOR,

MENTS, T FRED W. SUMMERS.

COIN-CONTROLLED LOCK.

Application filed. December 13, 1923.

This invention relates to coin controlled locks and is primarily adaptedfor use on doors or the like whereby it will be necessary to deposit acoin in the lock before the door may be opened by the public.

One feature of the invention is the pro vision of means in connectionwith the thumb latch of the lock for elevating the locking bolt of thelock for releasing it from its keeper, when a coin is properly insertedin the lock.

A further feature of the invention is the provision of means forpreventing the operation of the locking bolt until such time as a coinis inserted in the lock.

A further feature of the invention is the provision of means for holdingthe thumb latch in depressed position, after the same has been. operatedto release the locking bolt, until such time as the door has again beenclosed, the elevation of the bolt through contact with its keeper,engaging and releasing the lo-cl-ging mechanism on the thumb latch.

A further feature of the invention is the provision of means for closingthe coin slot to prevent the insertion of an additional coin while thecompartment to which the door attached is in use, means being providedfor holding the closing means in position over the coin slot until suchtime as the lock is manually operated from the interior of the enclosurefor releasing the locking bolt from its keeper in the act of opening thedoor. i

A further feature of the invention is the provision of means for holdingthe coin in engagement with the parts of the locking mechanism untilsuch time as the locking bolt has been elevated for releasing from itskeeper, means being provided for releasing the coin after the thumblatch has been operated for elevating the locking bolt.

Other objects and advantages will be herematter more fully set forth andpointed out in the accompanying specification.

In the accompanying drawings which are made a part of this application:

Figure 1 is a front elevation of the lock as applied to use. I

Fig. 2 is a side elevation thereof showing the door in section.

Fig. 3 is an inside elevation of the door portion of the lock caseshowing the part, carrled thereby.

positioned between the Serial No. 680,493.

Fig. 4 is a similar view of the interior of the lock case.

Fig. 5 is an enlarged detail sectional view as seen on line 5-5, Fig.

Fig. 6 is a sectional view 66, Fig. 3.

Fig. 7 is a sectional view as seen on line 7.-7, Fig. 3, and,

Fig. 8 is a plan view of the interior of the door portion of the lockcase, showing the closln means for the coin slot, parts of the lockingmechanism being shown in section.

Referring to the drawings in which similar reference numerals designatecorresponding parts throughout the several views, 1 indicates the bodyportion of the lock case and 2 indicates the door portion thereof, saidparts being preferably secured together by means of a hinge structure 3so that the door portion may be swung open for gaining access to theinterior of the case, the length of these parts being such as to form acom compartment 4 in the lower portion of the case.

Pivotally mounted in an opening 5 through the door portion 2 is a thumblatch G integral with which are formed paralleling arms 7, one of saidarms having a depend ing shank S for a purpose to be hereinafter setforth.

Positioned between the arms 7 is a pair of spaced oblong guides 9, whichare pivoted to the same pivot pin 10 as is used for pivoting the latch6, the guides 9 being held in cooperative relation with said arms bymeans of aspring 11, one end of the spring being connected with a pin 12passing transversely through the lower ends of the guides 9, while theupper end thereof is connected to a pin 13 extending transverselythrough the free ends of the arms 7. In this manner the guides willnormally move with the arms 7, but'at certain points in the operation ofthe lock mechanism, the guides 9 will be held against further movementwhile the arms 7 may have additional movement as will be laterdisclosed.

Pivotally mounted on the pin 13 between the arms 7 is a latch 14, havinga shoulder 15 thereonadapted to engage and elevate the locking bolt- 16when a coin is properly guides 9 and engages a st-uc 17 on the innerface of the body 1 to prevent the operation of the lock when no coin isentered therein. The lower end as seen on line BY MES-NE ASSIGN-' Q ofthe latch 1a is provided withan ertension may .be opened.

Coincident with the elevation of the arm 7 ,the guides 9 will swing onthe pivot pin 10 and move upwardly with the arms 7 until the upper endsthereof strike against a shutter 21 provided for closing the coin slot22, when the movement of the guides isstopped. v The arms-7, however,continue to swing upwardly carrying with them the pm 13 and therebymoving the pin 13 and extension 18 away from the coin 19 and permittingthe coin to; descend into the coin compartment l. Extending upwardlyfrom the shoulder is a linger 23, which will limit the swinging movementor the latchl l in one direction after the coin has been released fromthe guides, or when no coin has been inserted into the lock, while theswingmg mo-vementof the lower end of the latch 14 is limited in theopposite direction by striking against-the pin 13. The latch l i isnormally held in such position that the coin will readily passdownwardly between the guides 9 and strike the pins 12 and 13. T)

Dy means of a block 24, the edges of which are so tapered that when anattempt ismade to release the locking bolt without first" insertmg a comin the lock, the shoulder 15 will travel inwardly along the taperedupper edge of the block and pass beneath the r stud 17 and preventthe-shoulder striking the locking'bolt. The shoulder of the latch 14 isheld in engagement w thand caused to adhere to the tapered face of theblock by means of a spring 25, one end of which is attached to the latchat a? point below the pin 13', while the opposite end thereof isattaehed to parts 01 one of the arms 7.

When the'parts of the lockingmechanism have moved to the positions shownby dotted lines in Fig. 7 of the drawings, one end of a lever 26 mountednear its lower end on a suitable pivot 26 will enter a recess 27 in theinner face of the door portion 2, when 7 pressure is released from thethumb latch 6,

thereby holding the locking parts in unlocked position until the door28, to which the lock'is attached is again swung to closed position, theelevation of the free end of the locking bolt striking the upper end ofthe lever 26 and causing the lower end thereof to be released from therecess 27, thus permitting the thumb latch and parts associatedtherewith to assume their normal positions.

ditlerrnt thickr 'sses.

Coincident to the vertical movement of the arms 7 and partscarriedvthereby, the shutter 21 is swung laterally and over the coin slot 22 toprevent the introduction of a coin until the enclosure is vacated, thelower end of theshutter having a laterally extending arm 29,'throughwhich passes a pivot pin 30. l fhen the shutter is swung laterally overthe coin slot, the freee'nd or the arm 29 enters a notch 31 in one armof a locking 32 and the shutter is held in position over the coin slotuntil the occupant or" the enclosure manually releascs'the locking bolt16, consequently an additional coin can not be introduced into the lockd ring the occupancy of the enclosure. The free end of the arm 29 has anear thereon to which is attached one end of a spring 3 1, the oppositeend of the spring being attachedto an ear 35 on the lever 26 and whenthe-end of the arm 2:; is swung downwardly the spring will be tensed,thereby causing the end of the arm 29 to enter the notch .31 of thelocking dog and the lower end of the lever to enter the recess 2?. Thelocking dog is'pivoted to the cover portion 2 and is swung into positionto permit the end of the {1111129- to enter'the notch 31 by means of aspring 36, but when the arm 29is in its normal position it passesabovethe notch 31 and rests against the edge of one arm oi the locking dog.-

lhe shutter 21'is swun. laterally from its initial position by a rod 81,one end of which is pivoted to one of the arms 7', while the oppositeend thereof passes throughariear 38 on the arm 29, nuts 39 beingthreaded onto the end of the-rod for adjusting the throw of the shutter.I w

When the occupant ofthe enclosure turns the knob ll), which is connectedto a shank 41, a lever 42 fixed at one endto the shank will beswungupwardlyuntil a cross head l3 at the free end of the lever 42engagesand lifts the locking bolt 16 out of engagement with its keeper.Simultaneously with the raising of the locking bolt by the cross heada3, an extension is onthe lower end of the cross head willengageone armof the locking dog 32 and swing the arm thereof having the notchawayl'roni the end of the arm 29,

whereupon the spring 3a will return the shutter to its initial positionand uncover the -coin slot 22. The locking bolt 16 and lever 42 arereturned to their initial positions by means 01" spring one end oi whichis attached to the pivoted end 01'' the locking bolt and the other tothe pivoted end of the lever. V f

The shank i1 is provided with an elongated slot 16, through which isextended a pine-7 carried by the knob 41:0 so that the knob may beadjusted lengthwise of the shank for the accommodation of doors of Anysuitable means may be provided for securing the lock to the door, but inthe present instance bolts 48 are extended through the rear wall of thebody 1, through the door proper 28 and through a plate 49 on theopposite side of the door from the lock, these parts being securedtogether by tln'eading nuts 50 onto said bolts and as the heads of thebolts are concealed within the lock and the nuts on. the inner face ofthe door it will be impossible to remove the lock from the exterior ofthe inclosure.

For the better manipulation of the thumb latch, a conventional formofha-nd grip 51 is attached to the member 2 of the body 1 and anysuitable form of lock 52 for locking the closure member 2 in closedposition may be provided.

In operation, to gain access to the enclosure, a coin is introduced intothe coin slot from whence it descends between the guides 9 until itsdescent is stopped by the pins 12 and 18. Dowrnvard pressure is thenapplied to the thumb latch 6 which will result in swinging upwardly thearms 7 and moving the shoulder into contact with the locking bolt 16, acontinued pressure on the thumb latch swinging the free end of thelocking bolt out of engagement with the keeoer 20 when the door 28 maybe swun l a v o to open position.

Durin the upward swinging movement of the arms 7, the upper ends ortheguides 9 will strike against the shutter 21 which has been movedlaterally incident to the upward movenu-mt of the arms 7 and cause thelower ends of the guides to remain stationary while the free ends of thearms continue their upward movement, thereby separating the pins 12 and13 and releasing the coin therebetween.

The lower end of the lever 26 will have moved above the recess 27 sothat when pressure is released from the thumb latch 6, the end of thelever will enter the recess and prevent the return of the locking partsuntil such time as the door 28 has been opened and again closed, thuspreventing the loss of the coin in case the door is not opened beforethe coin is eleased. When the arms 7 are elevated for releasing thelocking bolt, the shutter 21 is rocked on its pivot and the body portionthereof disposed over the coin slot 22, while the free end of the arm 29will be lowered and engaged with the notch 31 in the locking dog 32. Inleaving the enclosure, the occupant turns the knob which swings thelever 42 upwardly, the upper end of the cross head l3 engaging andelevating the locking bolt from its keeper while the extension 44engages and releases the looking dog from the arm of the shutter.

After the lever 26 has been released from the recess 27, the inner endsof the arms 7 and the guides 9 will descend until the shank 8 strikesthe pin 12, the tension of the several springs on the locking unitservin in conjunction with the pin 12 and shank 8, to render the saidparts more or less rigid and maintain them in cooperative relation witheach other.

. The lock mechanism is new again in position to rec ive a. coin, whichis necessary for again opening the look, as any attempt to operate thethumb latch will result in the shoulder 15 engaging the stud l? andpreventing the depression of the thumb latch 6 to such an extent torelease the locking bolt from its keeper, consequently the lock can notbe operated to release the locking bolt without first inserting a coin.

lVith this form of locking mechanism it will be noted that the entirecoin controlled portion whereof is mounted in a single unit on a thumblatch, the parts of the coin controlled mechanism being operated by theordinary swinging movement of the latch, thus enabling me to produce avery cheap, durable and ellicient lockin n'iechanism and one that may beeasily operated.

ll hat I claim is:

1. In a coin controlled lock, a tilting latch having arms, guidespivoted with said latch, yielding means connecting said latch andguides, a locking bolt, and means carried by said arms and controlled bya coin for operating said locking bolt when the latch is depressed.

2. In a coin controlled look, a tilting latch, arms thereon, guidespivoted between said arms and tiltable therewith, yielding meansconnecting said arms and guides, means pivoted to said arms forcontrolling the operat-ion of said latch and parts carried thereby, andmeans operable by said latch for controlling the introduction of a coininto the lock.

In a coin controlled look, a lock case, a latch extending through onewall of the casing and pivoted thereto, a pair of arms on said latch,guides pivotally mounted between said arms, yielding means for causingsaid guides to swing with said arms, means carried by said arms andguides for temporarily retaining a coin, means operable by the swingingmover ent of said arms for controlling the admission of a coin into theguides, a locking bolt and means pivoted to said arms adapted to operatesaid locking bolt when a coin is positioned between said arms and guidesand the latch is tilted.

4-. In a coin controlled lock, a pivoted thumb latch, a coin controlledunit carried by said latch, a locking bolt adapted to be operated bysaid coin controlled unit when a coin is introduced thereinto, and meansfor temporarily holding the coin controlled unit in the bolt operatedand coin associated position after the coin is released therefrom.

In testimony whereof I hereto ailix my signature.

DONALD C. MORGAN.

